Punch 180mm * 80mm square hole thickness 6mm need to punch
Why buy another punch, 160T no more than 120,000 all the garbage
easy to go wrong, easy to use CNC cutting plate machine scissors, although the speed of a little slower, but safe, anyway, your board also need to cut
then the direct purchase of 160T punch can, of course, need a good quality punch, the general can also be washed, but the dangerous mechanical structure Requirements
Circumference 520 multiplied by the thickness of 6 multiplied by the coefficient of 0.4 = 1248 kN, if it is iron
